Plastic by Ciro Santilli 37 Updated 2025-07-16
www.youtube.com/watch?v=PbuiIhr0LVA 7 Different Types of Plastic and Their Uses by Orange Plastics Academy (2018) Does not mention packaging foams.
Plastic is a synthetic or semi-synthetic material made from polymers, which are large molecules composed of repeating structural units known as monomers. These polymers can be derived from natural sources (like cellulose) or synthesized from petroleum, natural gas, or other chemical feedstocks. Plastics are characterized by their versatility, durability, and malleability, which allow them to be molded into various shapes and forms.

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